I was ready to remove my geared Head and replace with a belt drive or a router.
The noise was killing me. I found the secret to reducing the noise by at least 75%.
Valvoline SYN Power 75w-90 gear oil...... half the noise, no foam at 1250 rmp
When I first turned the machine on I thought I was loosing my hearing.
Next.... I lubed the spindle MAG1 Super lith EP Moly Grease
I can now hear my stereo and when the air conditioner kicks off....
Peace at Last.........